Chu Ran, the criminal investigation captain of the Shencheng City Bureau, is back undercover and celebrating. At the same time, he is the only one who knows that he has forgotten everything that happened during the five years of undercover work. The accidental death of the deputy mayor made him realize that there is always someone helping him secretly. + In order to find the "good Samaritan" behind him, he puts himself in danger again and again. Unexpectedly, the appearance of the good Samaritan brings him greater danger.
Purpose: Evil will eventually be eliminated